histedit-test: test unknown changeset We had no tested for this case.

histedit-test: test malformed line We had not tested for this case.

histedit-test: test that extra revisions are detected We had not tested for this case.

histedit-test: test that missing revisions are detected We had not tested for this case.

histedit: handle multiple spaces between action and hash (issue3893) There is some clue that the previous code intended to handle that but it was actually not the case. As a result action could apply to the empty string '' changeset, leading to the use the current working directory parent in some operations.

http2: sane readline It turns out that it pays off to read more than a byte at a time with a select in between :)

http2: make read use pushchunk/popchunk, eschew itertools The itertools approach was showing up high in the profile output.

http2: track available data as it changes instead of recomputing it With a large amount of available data, this computation can become costly.

histedit-test: rename histedit-revspec into histedit-argument We have no testing for argument. This small file seems perfect once but needs a rename.

histedit-test: remove unnecessary graphlog extension Graphlog is now in core.